149657874 has 16 divisors (see below), whose sum is σ = 299449920. Its totient is φ = 49863600.

The previous prime is 149657843. The next prime is 149657897. The reversal of 149657874 is 478756941.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14424 + ... + 22524.

It is an arithmetic number, because the mean of its divisors is an integer number (18715620).

Almost surely, 2^149657874 is an apocalyptic number.

149657874 is an abundant number, since it is smaller than the sum of its proper divisors (149792046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149657874 is a wasteful number, since it uses less digits than its factorization.

149657874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11185.

The product of its digits is 1693440, while the sum is 51.

The square root of 149657874 is about 12233.4735051007. The cubic root of 149657874 is about 530.9250180511.

The spelling of 149657874 in words is "one hundred forty-nine million, six hundred fifty-seven thousand, eight hundred seventy-four".